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McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manfuactured and modular homes
What are the HUD minimum requirements for foundation footings and piers under a mobile/manufactured home?
Tuesday, February 26, 2019
There are two specs, one for piers up to 36” high using single-stacked blocks, and another for piers from 36” to 67” with double-stacked blocks, per HUD CFR 3285.306, and as shown below. Piers over 67” high must be designed by a licensed engineer or architect. Mortar is not required unless specified by the manufacturer and, since these are minimum requirements, the manufacturer’s specifications may exceed them.
Also, see our blog posts What are the most common defects in mobile/manufactured home foundation piers? and Why does Florida have mobile/manufactured home installation standards that exceed HUD requirements? and How can I tell if a mobile/manufactured home will pass a foundation certification inspection? and Where can I file a complaint if I have problems with my new or used manufactured/mobile home in Florida?
And go to our HUD-CODE FOR MOBILE HOMES page for a listing of our other HUD-code articles.
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